Convection Currents and the Mantle

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Vocabulary

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• Heat Transfer-movement of energy from a warmer object to a cooler object

- three types of heat transfer:Radiation,Conduction,Convection

• Radiation-the transfer of energy through an empty space.
• Conduction-transfer by direct contact of particles of matter
• Convection-transfer by the movement of a heated fluid
• Density-a measure of how much mass there is in a volume of a substance
• Convection Current-flow that transfers heat with a fluid

Outline

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Radiation

• Sunlight and flame or open fire

Conduction

• heated paticles of substance transfers heat to other particles

Convection

• heat transfer by movement of heated fluid
• heated particles of fluid flow,transfering heat energy to one part of fluid to another

Convection in the Earth's Mantle

• mantle responds to heat